Theodore bruno



A glatten' gratta, g'stcnt @fitta 'rn-nononn n.nUNo, or SAGINAW, MICHIGAN.

Lam Parent No. 77,449, ma May 5, 1868.

@In Stimuli naakt tu in tigen finden@anniV mit mating nat nf tte-tame.

TO ALL WHOM IT MAY CONCERN;y Y

. Be it known that I, Tunononn BRUNO, of Saginaw, in the countyr of' Saginaw, and State of Michigan, have invented a new and improved Machine for sawing Bolts, Sec.; and I/do hereby declare that the following is:I a l full, clear, and exact description thereof, which will enable others skilled in the ,art to make and use the same,

reference being had to the accompanying drawings, forming part of this specification.

This invention relates .to a new-and improved method of constructing machinery'for sawingbolts or lathsl I or vother strips, f rouf planks or boards, whereby time and labor are economized..

It consists in the construction, arrangement, and combination-of the several parts, as shownandlherein' after more fully set forth.

In the accompanying plate of drawings?- Figure is a'plan view of my invention.

Figure 2 is aside elevationot the same.

Figure 3 represents across-section of the same, taken in the line :v :v,ig. 1.

Similar letters of reference indicate corresponding parts.

Upon any suitable frame, A, and rotating/,in suitable bearings upon the same, is a saw-mandrel or arbor, B, having upon the inner end of said arbor twoy or morecircular'saws C. ThesawsO are secured to the mandrel B in the ordinary way, and are placed at such distance from each other as that, whenin operation, they will saw strips of the required width.

The mandrel B is furnished with the necessary pulleys D, byimeans ofwhich the saws C 'are driven, and to communicate motion, through a belt, E, andpulley G, to a shaft, F, rotating in suitable bearingson the end of the frame A, as shown. n

l Upon suitable parallel horizontal strips, running lengthwise of the frameA, are the rails H, to support and gnide thefeed-carriage I. The feed-carriage I is made in the ordinary manner of. constructing feedcarriages for sawing-machines now commonly in use, and isheld nponthe railsA bygibs, or in any other convenient way. The rails H are laid at right angles to the mandrel B, and are of such height as to bring the top of the car` ringe as nearly as possible to the centre of the saws C. A v

Upon the inner end of the shaft F is keyed a wheel, J'. The carriage I is connected to the wheel J by "a onnecting-rod, K, said connecting-rod Kbeing pivoted to the centre ofthe carriage I at lone end, and connected with the wheel J at the other end, by means of the crank-pin a, as shown, by means of. which connection a reciprocating-rectilinear motion is given to the carriage I, from the continuous rotating motion .of the lmandrel B, which is an important feature of the present invention, since planks Or'bOnrds are thus vfed up to the saws C, and Withdrawn lwithout eiort to the operator.

A second important feature of my vinvention consists'in the manner of gauging the width of the strips to be sawed, whereby one or more strips m'ay be sawcd from the plank at' pleasure.

Upon the frame A i's a-gauge, L, so situated, with Irespect to lthe saws C, as that two lor more strips, of a given width, will be lsawed from the plank at thesame'time, according to the vnumber of saws. Betweenl the gauge L and the inner face of the inner saw C is a movable guage, M, thein-ner' edge of whichI is in a line with the inner face ofthe outer saw. The gauge M is a rectangular strip, supported by a spring, N, and is permitted a snilcient vertical motion, in a longitudinal' slot inthe frame A, so that said gauge M may be wholly with-` drawn below the level of the top of the carriage I.

The spring N holds the gauge M"up suciently to guide the plank or board to been-t;- and when scheld,

only onesti-ip will be sawed from said plank.

To the under side of the strips on which the rails H are laid, is pivoted al lever, O, the shorter arm' of said lever O beingI connected with the gauge M by a connecting-rod, as, shown, by means ofwhich said lever O.the"

gauge M is drawn down, against the force of the spring N, to l`thelevcl ofthe carriage I, any suitable catch, P, being atta0hed,in convenient position, in the frame A, tohold the longerarm ofthe lever O up, said 4catch P y' being so formed as to allow the, longer arm of the' said Vlever O to be released, when the gauge M will ,be forced up through the frame A by the spring N. The spring N may be of any suitable form, as semi-elliptic, shown in the drawing.

A. third important feature of my invention consists in the manner of catching and holding the strips, Iaths, or bolts, 'after the same have been sawed from the board or plank. i l

Upon the top of the frame A, behind the saws, is' a' metallic plate, 2, furnished with a. guiding-rim, a. Said rim a. is bent outwards from the machine, as shown in the drawing, fig. 1`.

'Near the end of the frame A, on the side of the same, and under the guiding-plate Q, are two metallic hooks R, a's shown, so bent as to receive and hold the strips, bolts, or laths which have been sawed from the plank or board,

The operation is similar to that of other machines for sawing laths now commonly in use, the present invention being self-feeding, furnished with a double gauge, and means ci' catching the laths or bolts after being l sawed, as above described.

I claim as new, and desire to secure by Letters Patent- The gauge M, working in the longitudinal slot infront ofthe guide L, and resting upon the spring N, operated by the levier O, whereby the numberof strips to be cut from the board at one operationis regulated, as herein shown and described. l

THEODORE BRUNO.4

Witnesses:

J'. H. SUTHERLAND, CHILTON D. BURDIGK. 

